From: Daniel Kobras <kobras@debian.org>
Subject: Don't override SHELL variable in configure.ac for no apparent reason.
 Doing so is unsupported and breaks building with /bin/sh pointing to
 dash. Cf. Debian bug #447022 on libtool/fakeroot for a discussion of
 the problem.

diff -urNad '--exclude=CVS' '--exclude=.svn' '--exclude=.git' '--exclude=.arch' '--exclude=.hg' '--exclude=_darcs' '--exclude=.bzr' dx~/configure.ac dx/configure.ac
--- dx~/configure.ac	2010-03-25 17:10:29.000000000 +0100
+++ dx/configure.ac	2010-03-25 17:10:57.000000000 +0100
@@ -27,11 +27,11 @@
 AC_SUBST(MINOR_VERSION)dnl
 AC_SUBST(MICRO_VERSION)dnl
 
-SHELL=sh
+dnl SHELL=sh
 BUILDBASE="`pwd`"
 
 AC_SUBST(YACC)
-AC_SUBST(SHELL)
+dnl AC_SUBST(SHELL)
 AC_SUBST(ARCH)
 AC_SUBST(EXEEXT)
 AC_SUBST(OBJEXT)